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Finding the Fourth Proportional to 517.48, 714.47 and 342.92

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Solution

The fourth proportional to 517.48, 714.47 and 342.92 is: 473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.48 : 714.47 = 342.92 : x
  2. Step 2: Convert to fraction form
    517.48/714.47 = 342.92/x
  3. Step 3: Cross multiply
    517.48x = 714.47 × 342.92
  4. Step 4: Simplify right side
    517.48x = 245,006.12
  5. Step 5: Solve for x
    x = 245,006.12/517.48
  6. Step 6: Final answer
    x = 473.46

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.